зеркало из https://github.com/github/ruby.git
313 строки
8.6 KiB
C
313 строки
8.6 KiB
C
/* -*- C -*-
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* $Id$
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*/
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#ifndef RUBY_DL_H
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#define RUBY_DL_H
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#include <ruby.h>
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#include <dlconfig.h>
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#if defined(HAVE_DLFCN_H)
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# include <dlfcn.h>
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# /* some stranger systems may not define all of these */
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#ifndef RTLD_LAZY
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#define RTLD_LAZY 0
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#endif
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#ifndef RTLD_GLOBAL
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#define RTLD_GLOBAL 0
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#endif
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#ifndef RTLD_NOW
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#define RTLD_NOW 0
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#endif
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#else
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# if defined(HAVE_WINDOWS_H)
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# include <windows.h>
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# define dlclose(ptr) FreeLibrary((HINSTANCE)ptr)
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# define dlopen(name,flag) ((void*)LoadLibrary(name))
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# define dlerror() "unknown error"
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# define dlsym(handle,name) ((void*)GetProcAddress(handle,name))
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# define RTLD_LAZY -1
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# define RTLD_NOW -1
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# define RTLD_GLOBAL -1
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# endif
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#endif
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#if !defined(StringValue)
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# define StringValue(v) if(TYPE(v) != T_STRING) v = rb_str_to_str(v)
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#endif
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#if !defined(StringValuePtr)
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# define StringValuePtr(v) RSTRING((TYPE(v) == T_STRING) ? (v) : rb_str_to_str(v))->ptr
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#endif
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#ifdef DEBUG
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#define DEBUG_CODE(b) {printf("DEBUG:%d\n",__LINE__);b;}
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#define DEBUG_CODE2(b1,b2) {printf("DEBUG:%d\n",__LINE__);b1;}
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#else
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#define DEBUG_CODE(b)
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#define DEBUG_CODE2(b1,b2) b2
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#endif
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#define VOID_DLTYPE 0x00
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#define CHAR_DLTYPE 0x01
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#define SHORT_DLTYPE 0x02
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#define INT_DLTYPE 0x03
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#define LONG_DLTYPE 0x04
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#define FLOAT_DLTYPE 0x05
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#define DOUBLE_DLTYPE 0x06
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#define VOIDP_DLTYPE 0x07
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#define ARG_TYPE(x,i) (((x) & (0x07 << ((i)*3))) >> ((i)*3))
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#define PUSH_ARG(x,t) do{x <<= 3; x |= t;}while(0)
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#define PUSH_0(x) PUSH_ARG(x,VOID_DLTYPE)
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#if SIZEOF_INT == SIZEOF_LONG
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# define PUSH_I(x) PUSH_ARG(x,LONG_DLTYPE)
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# define ANY2I(x) x.l
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# define DLINT(x) (long)x
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#else
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# define PUSH_I(x) PUSH_ARG(x,INT_DLTYPE)
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# define ANY2I(x) x.i
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# define DLINT(x) (int)x
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#endif
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#define PUSH_L(x) PUSH_ARG(x,LONG_DLTYPE)
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#define ANY2L(x) x.l
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#define DLLONG(x) (long)x
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#if defined(WITH_TYPE_FLOAT)
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# if SIZEOF_FLOAT == SIZEOF_DOUBLE
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# define PUSH_F(x) PUSH_ARG(x,DOUBLE_DLTYPE)
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# define ANY2F(x) (x.d)
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# define DLFLOAT(x) ((double)x)
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# else
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# define PUSH_F(x) PUSH_ARG(x,FLOAT_DLTYPE)
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# define ANY2F(x) (x.f)
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# define DLFLOAT(x) ((float)x)
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# endif
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#else
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# define PUSH_F(x) PUSH_ARG(x,DOUBLE_DLTYPE)
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# define ANY2F(x) (x.d)
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# define DLFLOAT(x) ((double)x)
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#endif
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#define PUSH_D(x) PUSH_ARG(x,DOUBLE_DLTYPE)
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#define ANY2D(x) (x.d)
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#define DLDOUBLE(x) ((double)x)
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#if SIZEOF_INT == SIZEOF_VOIDP && SIZEOF_INT != SIZEOF_LONG
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# define PUSH_P(x) PUSH_ARG(x,INT_DLTYPE)
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# define ANY2P(x) (x.i)
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# define DLVOIDP(x) ((int)x)
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#elif SIZEOF_LONG == SIZEOF_VOIDP
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# define PUSH_P(x) PUSH_ARG(x,LONG_DLTYPE)
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# define ANY2P(x) (x.l)
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# define DLVOIDP(x) ((long)x)
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#else
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# define PUSH_P(x) PUSH_ARG(x,VOIDP_DLTYPE)
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# define ANY2P(x) (x.p)
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# define DLVOIDP(x) ((void*)p)
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#endif
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#if defined(WITH_TYPE_CHAR)
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# define PUSH_C(x) PUSH_ARG(x,CHAR_DLTYPE)
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# define ANY2C(x) (x.c)
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# define DLCHAR(x) ((char)x)
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#else
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# define PUSH_C(x) PUSH_I(x)
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# define ANY2C(x) ANY2I(x)
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# define DLCHAR(x) DLINT(x)
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#endif
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#if defined(WITH_TYPE_SHORT)
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# define PUSH_H(x) PUSH_ARG(x,SHORT_DLTYPE)
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# define ANY2H(x) (x.h)
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# define DLSHORT(x) ((short)x)
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#else
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# define PUSH_H(x) PUSH_I(x)
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# define ANY2H(x) ANY2I(x)
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# define DLSHORT(x) DLINT(x)
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#endif
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#define PUSH_S(x) PUSH_P(x)
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#define ANY2S(x) ANY2P(x)
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#define DLSTR(x) DLVOIDP(x)
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#define CBPUSH_0(x) PUSH_0(x)
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#define CBPUSH_C(x) PUSH_C(x)
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#define CBPUSH_H(x) PUSH_H(x)
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#define CBPUSH_I(x) PUSH_I(x)
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#define CBPUSH_L(x) PUSH_L(x)
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#define CBPUSH_F(x) PUSH_F(x)
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#define CBPUSH_D(x) PUSH_D(x)
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#if defined(WITH_CBTYPE_VOIDP)
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# define CBPUSH_P(x) PUSH_ARG(x,VOIDP_DLTYPE)
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#else
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# define CBPUSH_P(x) PUSH_P(x)
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#endif
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#if defined(USE_INLINE_ASM)
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# if defined(__i386__) && defined(__GNUC__)
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# define DLSTACK
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# define DLSTACK_METHOD "asm"
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# define DLSTACK_REVERSE
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# define DLSTACK_PROTO
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# define DLSTACK_ARGS
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# define DLSTACK_START(sym)
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# define DLSTACK_END(sym)
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# define DLSTACK_PUSH_C(x) asm volatile ("pushl %0" :: "g" (x));
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# define DLSTACK_PUSH_H(x) asm volatile ("pushl %0" :: "g" (x));
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# define DLSTACK_PUSH_I(x) asm volatile ("pushl %0" :: "g" (x));
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# define DLSTACK_PUSH_L(x) asm volatile ("pushl %0" :: "g" (x));
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# define DLSTACK_PUSH_P(x) asm volatile ("pushl %0" :: "g" (x));
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# define DLSTACK_PUSH_F(x) asm volatile ("flds %0"::"g"(x));\
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asm volatile ("subl $4,%esp");\
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asm volatile ("fstps (%esp)");
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# define DLSTACK_PUSH_D(x) asm volatile ("fldl %0"::"g"(x));\
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asm volatile ("subl $8,%esp");\
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asm volatile ("fstpl (%esp)")
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# else
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# error --with-asm is not supported on this machine
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# endif
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#elif defined(USE_DLSTACK)
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# define DLSTACK
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# define DLSTACK_METHOD "dl"
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# define DLSTACK_PROTO long,long,long,long,long,\
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long,long,long,long,long,\
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long,long,long,long,long
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# define DLSTACK_ARGS stack[0],stack[1],stack[2],stack[3],stack[4],\
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stack[5],stack[6],stack[7],stack[8],stack[9],\
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stack[10],stack[11],stack[12],stack[13],stack[14]
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# define DLSTACK_SIZE (sizeof(long)*15)
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# define DLSTACK_START(sym)
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# define DLSTACK_END(sym)
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# define DLSTACK_PUSH_C(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;}
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# define DLSTACK_PUSH_H(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;}
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# define DLSTACK_PUSH_I(x) {long v=(long)x; memcpy(sp,&v,sizeof(long)); sp++;}
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# define DLSTACK_PUSH_L(x) memcpy(sp,&x,sizeof(long)); sp++;
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# define DLSTACK_PUSH_P(x) memcpy(sp,&x,sizeof(void*)); sp++;
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# define DLSTACK_PUSH_F(x) memcpy(sp,&x,sizeof(float)); sp+=sizeof(float)/sizeof(long);
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# define DLSTACK_PUSH_D(x) memcpy(sp,&x,sizeof(double)); sp+=sizeof(double)/sizeof(long);
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#else
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# define DLSTACK_METHOD "none"
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#endif
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extern VALUE rb_mDL;
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extern VALUE rb_mDLMemorySpace;
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extern VALUE rb_cDLHandle;
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extern VALUE rb_cDLSymbol;
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extern VALUE rb_cDLPtrData;
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extern VALUE rb_cDLStructData;
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extern VALUE rb_eDLError;
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extern VALUE rb_eDLTypeError;
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#if defined(LONG2NUM) && (SIZEOF_LONG == SIZEOF_VOIDP)
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# define DLLONG2NUM(x) LONG2NUM((long)x)
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# define DLNUM2LONG(x) (long)(NUM2LONG(x))
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#else
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# define DLLONG2NUM(x) INT2NUM((long)x)
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# define DLNUM2LONG(x) (long)(NUM2INT(x))
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#endif
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typedef struct { char c; void *x; } s_voidp;
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typedef struct { char c; short x; } s_short;
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typedef struct { char c; int x; } s_int;
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typedef struct { char c; long x; } s_long;
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typedef struct { char c; float x; } s_float;
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typedef struct { char c; double x; } s_double;
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#define ALIGN_VOIDP (sizeof(s_voidp) - sizeof(void *))
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#define ALIGN_SHORT (sizeof(s_short) - sizeof(short))
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#define ALIGN_INT (sizeof(s_int) - sizeof(int))
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#define ALIGN_LONG (sizeof(s_long) - sizeof(long))
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#define ALIGN_FLOAT (sizeof(s_float) - sizeof(float))
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#define ALIGN_DOUBLE (sizeof(s_double) - sizeof(double))
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/* for compatibility */
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#define VOIDP_ALIGN ALIGN_VOIDP
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#define SHORT_ALIGN ALIGN_SHORT
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#define INT_ALIGN ALIGN_INT
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#define LONG_ALIGN ALIGN_LONG
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#define FLOAT_ALIGN ALIGN_FLOAT
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#define DOUBLE_ALIGN ALIGN_DOUBLE
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#define DLALIGN(ptr,offset,align) {\
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while( (((unsigned long)((char *)ptr + offset)) % align) != 0 ) offset++;\
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}
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typedef void (*freefunc_t)(void *);
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#define DLFREEFUNC(func) ((freefunc_t)(func))
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typedef union {
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void* p;
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char c;
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short h;
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int i;
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long l;
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float f;
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double d;
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char *s;
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} ANY_TYPE;
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struct dl_handle {
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void *ptr;
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int open;
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int enable_close;
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};
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struct sym_data {
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void *func;
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char *name;
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char *type;
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int len;
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};
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enum DLPTR_CTYPE {
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DLPTR_CTYPE_UNKNOWN,
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DLPTR_CTYPE_STRUCT,
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DLPTR_CTYPE_UNION
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};
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struct ptr_data {
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void *ptr; /* a pointer to the data */
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freefunc_t free; /* free() */
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char *stype; /* array of type specifiers */
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int *ssize; /* size[i] = sizeof(type[i]) > 0 */
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int slen; /* the number of type specifiers */
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ID *ids;
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int ids_num;
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int ctype; /* DLPTR_CTYPE_UNKNOWN, DLPTR_CTYPE_STRUCT, DLPTR_CTYPE_UNION */
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long size;
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};
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#define RDLPTR(obj) ((struct ptr_data *)(DATA_PTR(obj)))
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#define RDLSYM(obj) ((struct sym_data *)(DATA_PTR(obj)))
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void dlfree(void*);
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void *dlmalloc(size_t);
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void *dlrealloc(void*,size_t);
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char *dlstrdup(const char *);
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size_t dlsizeof(const char *);
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void *rb_ary2cary(char t, VALUE ary, long *size);
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/*
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void rb_dlmem_delete(void *ptr);
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void rb_dlmem_aset(void *ptr, VALUE obj);
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VALUE rb_dlmem_aref(void *ptr);
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*/
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void dlptr_free(struct ptr_data *data);
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void dlptr_init(VALUE val);
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VALUE rb_dlptr_new(void *ptr, long size, freefunc_t func);
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VALUE rb_dlptr_new2(VALUE klass, void *ptr, long size, freefunc_t func);
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VALUE rb_dlptr_malloc(long size, freefunc_t func);
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void *rb_dlptr2cptr(VALUE val);
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VALUE rb_dlsym_new(void (*func)(), const char *name, const char *type);
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freefunc_t rb_dlsym2csym(VALUE val);
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#endif /* RUBY_DL_H */
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